18221841

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 31606848

約数和(自身を除く): 13385007

約数列:

[1, 3, 9, 11, 17, 27, 33, 51, 81, 99, 153, 187, 243, 297, 401, 459, 561, 891, 1203, 1377, 1683, 2673, 3609, 4131, 4411, 5049, 6817, 10827, 13233, 15147, 20451, 32481, 39699, 45441, 61353, 74987, 97443, 119097, 184059, 224961, 357291, 552177, 674883, 1071873, 1656531, 2024649, 6073947, 18221841]

約数ペア:

[(1, 18221841), (3, 6073947), (9, 2024649), (11, 1656531), (17, 1071873), (27, 674883), (33, 552177), (51, 357291), (81, 224961), (99, 184059), (153, 119097), (187, 97443), (243, 74987), (297, 61353), (401, 45441), (459, 39699), (561, 32481), (891, 20451), (1203, 15147), (1377, 13233), (1683, 10827), (2673, 6817), (3609, 5049), (4131, 4411)]